diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index c3b0de2..5084a6c 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -14,8 +14,6 @@
 #You should have received a copy of the GNU Affero General Public License
 #along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-version: "3.9"
-
 services:
   htwkalender-backend:
     image: DOCKER_REGISTRY_REPO:backend # DOCKER_REGISTRY_REPO will be replaced by CI
@@ -41,11 +39,15 @@ services:
     restart: always
     volumes:
       - ./reverseproxy.conf:/opt/bitnami/nginx/conf/nginx.conf
+      - ./htwkalender.de.pem:/opt/bitnami/nginx/conf/htwkalender.de.pem
+      - ./htwkalender.de.key.pem:/opt/bitnami/nginx/conf/htwkalender.de.key.pem
+      - ./cal.htwk-leipzig.de.pem:/opt/bitnami/nginx/conf/cal.htwk-leipzig.de.pem
+      - ./cal.htwk-leipzig.de.key.pem:/opt/bitnami/nginx/conf/cal.htwk-leipzig.de.key.pem
     depends_on:
       - htwkalender-backend
       - htwkalender-frontend
     ports:
-      - "80:80"
+      - "443:443"
     networks:
       - "net"